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Install Cover Ring, Wallplate Or Subbase; Mercury Notice - Honeywell CT87A round Installation Instructions Manual

Low voltage (15 to 30 vac), thermostat and mounting hardware
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5. Label the wires using the wiring
labels that came with the CT87.
Identify each wire using the letter
of the terminal on the old thermo-
stat to which it is attached (Fig. 2).
Do not label the wires by color.
6. Disconnect the wires from the old
thermostat and wrap them around
a pencil to keep them from falling
back into the wall (Fig. 3).

MERCURY NOTICE

If this thermostat is replacing a
control that contains mercury in a
sealed tube, do not place your old
control in the trash. Contact your
local waste management authority
for instructions regarding recycling and the proper disposal of this
control, or of an old control containing mercury in a sealed tube.
4
Install the cover ring and wallplate or subbase
If installing on the wall
Refer to Fig. 4 as you work.
Fig. 4–Installing the wallplate/subbase on the wall (wallplate shown)
COVER RING
WALLPLATE
NO. 4 X 1 INCH
SHEET METAL SCREWS (2)
3
CT87A,B,J ROUND® THERMOSTAT
Fig. 2
Fig. 3
THERMOSTAT
WIRING OPENING
M19086
WIRES THROUGH
WALL OPENING
M20133
M20188
69-0274-5

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